建筑垃圾再生混合砂砂浆性能试验研究  

Experimental study on performance of recycled construction waste mixed sand mortar

作　　者：刘俊华[1] 张霞[1] 刘凤利[2] 

机构地区：[1]开封大学土木建筑工程学院,河南开封475004 [2]河南大学土木建筑学院,河南开封475004

出　　处：《混凝土》2014年第3期131-134,140,共5页Concrete

基　　金：国家级大学生创新创业训练计划项目(201210475009);河南省教育厅科学技术研究重点项目(13B560136);河南省科技厅科技攻关项目(132102310113)

摘　　要：将建筑垃圾中分拣出的废混凝土和废砖破碎为再生粗砂,部分取代特细砂配成建筑垃圾再生混合砂,固定稠度和胶砂比,通过对比试验研究了废混凝土再生混合砂、废砖再生混合砂、废混凝土和废砖再生混合砂、特细砂和天然中砂对砂浆抗压强度和抗折强度的影响规律,并进行了机理分析和应用可行性判断。Waste concrete and waste brick coming from construction waste are crushed as recycled construction waste coarse sand.And recycled construction waste mixed sand is made by recycled construction waste coarse sand and ultra fine sand.Fixed consistence and cement-aggregate ratio, contrast study is made on the influence of different aggregate on compressive strength and flexural strength of mortar,which is respectively made from recycled concrete mixed sand,recycled brick mixed sand,recycled concrete and brick mixed sand, ultra fine sand, natural medium sand.Then mechanism analysis and application feasibility is conducted.

关 键 词：废混凝土再生粗砂 废砖再生粗砂 特细砂 再生砂浆 强度 

分 类 号：TU528.041[建筑科学—建筑技术科学]